Home / 99,870,173.60-149,917,234.80-77,251,344.80

Finding the Fourth Proportional to 99,870,173.60, 149,917,234.80 and 77,251,344.80

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Solution

The fourth proportional to 99,870,173.60, 149,917,234.80 and 77,251,344.80 is: 115,963,631.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,870,173.60 : 149,917,234.80 = 77,251,344.80 : x
  2. Step 2: Convert to fraction form
    99,870,173.60/149,917,234.80 = 77,251,344.80/x
  3. Step 3: Cross multiply
    99,870,173.60x = 149,917,234.80 × 77,251,344.80
  4. Step 4: Simplify right side
    99,870,173.60x = 11,581,307,996,997,360
  5. Step 5: Solve for x
    x = 11,581,307,996,997,360/99,870,173.60
  6. Step 6: Final answer
    x = 115,963,631.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.